Buggy code:
public static final String JAVA_VM_SPECIFICATION_NAME = SystemUtils . getSystemProperty ( "java.vm.specification.name" ) ; public static final String JAVA_VM_SPECIFICATION_VENDOR = SystemUtils . getSystemProperty ( "java.vm.specification.vendor" ) ; public static final String JAVA_VM_SPECIFICATION_VERSION = SystemUtils . getSystemProperty ( "java.vm.specification.version" ) ; public static final String JAVA_VM_VENDOR = SystemUtils . getSystemProperty ( "java.vm.vendor" ) ; public static final String JAVA_VM_VERSION = SystemUtils . getSystemProperty ( "java.vm.version" ) ; public static final String LINE_SEPARATOR = SystemUtils . getSystemProperty ( "line.separator" ) ; public static final String OS_ARCH = SystemUtils . getSystemProperty ( "os.arch" ) ; public static final String OS_NAME = SystemUtils . getSystemProperty ( "os.name" ) ; public static final String OS_VERSION = SystemUtils . getSystemProperty ( "os.version" ) ; public static final String PATH_SEPARATOR = SystemUtils . getSystemProperty ( "path.separator" ) ; public static final String USER_COUNTRY = ( ( SystemUtils . getSystemProperty ( "user.country" ) ) == null ) ? SystemUtils . getSystemProperty ( "user.region" ) : SystemUtils . getSystemProperty ( "user.country" ) ; public static final String USER_DIR = SystemUtils . getSystemProperty ( SystemUtils . USER_DIR_KEY ) ; public static final String USER_HOME = SystemUtils . getSystemProperty ( SystemUtils . USER_HOME_KEY ) ; public static final String USER_LANGUAGE = SystemUtils . getSystemProperty ( "user.language" ) ; public static final String USER_NAME = SystemUtils . getSystemProperty ( "user.name" ) ; public static final String USER_TIMEZONE = SystemUtils . getSystemProperty ( "user.timezone" ) ; public static final boolean IS_JAVA_1_1 = SystemUtils . getJavaVersionMatches ( "1.1" ) ; public static final boolean IS_JAVA_1_2 = SystemUtils . getJavaVersionMatches ( "1.2" ) ; public static final boolean IS_JAVA_1_3 = SystemUtils . getJavaVersionMatches ( "1.3" ) ; public static final boolean IS_JAVA_1_4 = SystemUtils . getJavaVersionMatches ( "1.4" ) ; public static final boolean IS_JAVA_1_5 = SystemUtils . getJavaVersionMatches ( "1.5" ) ; public static final boolean IS_JAVA_1_6 = SystemUtils . getJavaVersionMatches ( "1.6" ) ; public static final boolean IS_JAVA_1_7 = SystemUtils . getJavaVersionMatches ( "1.7" ) ; public static final boolean IS_OS_AIX = SystemUtils . getOSMatchesName ( "AIX" ) ; public static final boolean IS_OS_HP_UX = SystemUtils . getOSMatchesName ( "HP-UX" ) ; public static final boolean IS_OS_IRIX = SystemUtils . getOSMatchesName ( "Irix" ) ; public static final boolean IS_OS_LINUX = ( SystemUtils . getOSMatchesName ( "Linux" ) ) || ( SystemUtils . getOSMatchesName ( "LINUX" ) ) ; public static final boolean IS_OS_MAC = SystemUtils . getOSMatchesName ( "Mac" ) ; public static final boolean IS_OS_MAC_OSX = SystemUtils . getOSMatchesName ( "Mac<seq2seq4repair_space>OS<seq2seq4repair_space>X" ) ; public static final boolean IS_OS_FREE_BSD = SystemUtils . getOSMatchesName ( "FreeBSD" ) ; public static final boolean IS_OS_OPEN_BSD = SystemUtils . getOSMatchesName ( "OpenBSD" ) ; public static final boolean IS_OS_NET_BSD = SystemUtils . getOSMatchesName ( "NetBSD" ) ; public static final boolean IS_OS_OS2 = SystemUtils . getOSMatchesName ( "OS//2" ) ; public static final boolean IS_OS_SOLARIS = SystemUtils . getOSMatchesName ( "Solaris" ) ; public static final boolean IS_OS_SUN_OS = SystemUtils . getOSMatchesName ( "SunOS" ) ; public static final boolean IS_OS_UNIX = ( ( ( ( ( ( ( ( ( SystemUtils . IS_OS_AIX ) || ( SystemUtils . IS_OS_HP_UX ) ) || ( SystemUtils . IS_OS_IRIX ) ) || ( SystemUtils . IS_OS_LINUX ) ) || ( SystemUtils . IS_OS_MAC_OSX ) ) || ( SystemUtils . IS_OS_SOLARIS ) ) || ( SystemUtils . IS_OS_SUN_OS ) ) || ( SystemUtils . IS_OS_FREE_BSD ) ) || ( SystemUtils . IS_OS_OPEN_BSD ) ) || ( SystemUtils . IS_OS_NET_BSD ) ; public static final boolean IS_OS_WINDOWS = SystemUtils . getOSMatchesName ( SystemUtils . OS_NAME_WINDOWS_PREFIX ) ; public static final boolean IS_OS_WINDOWS_2000 = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "5.0" ) ; public static final boolean IS_OS_WINDOWS_2003 = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "5.2" ) ; public static final boolean IS_OS_WINDOWS_2008 = SystemUtils . getOSMatches ( ( ( SystemUtils . OS_NAME_WINDOWS_PREFIX ) + "<seq2seq4repair_space>Server<seq2seq4repair_space>2008" ) , "6.1" ) ; public static final boolean IS_OS_WINDOWS_95 = SystemUtils . getOSMatches ( ( ( SystemUtils . OS_NAME_WINDOWS_PREFIX ) + "<seq2seq4repair_space>9" ) , "4.0" ) ; public static final boolean IS_OS_WINDOWS_98 = SystemUtils . getOSMatches ( ( ( SystemUtils . OS_NAME_WINDOWS_PREFIX ) + "<seq2seq4repair_space>9" ) , "4.1" ) ; public static final boolean IS_OS_WINDOWS_ME = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "4.9" ) ; public static final boolean IS_OS_WINDOWS_NT = SystemUtils . getOSMatchesName ( ( ( SystemUtils . OS_NAME_WINDOWS_PREFIX ) + "<seq2seq4repair_space>NT" ) ) ; public static final boolean IS_OS_WINDOWS_XP = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "5.1" ) ; public static final boolean IS_OS_WINDOWS_VISTA = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "6.0" ) ; public static final boolean IS_OS_WINDOWS_7 = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "6.1" ) ; public static final boolean IS_OS_WINDOWS_8 = SystemUtils . getOSMatches ( SystemUtils . OS_NAME_WINDOWS_PREFIX , "6.2" ) ; public static File getJavaHome ( ) { } public static File getJavaIoTmpDir ( ) { } private static boolean getJavaVersionMatches ( final String versionPrefix ) { } private static boolean getOSMatches ( final String osNamePrefix , final String osVersionPrefix ) { } private static boolean getOSMatchesName ( final String osNamePrefix ) { } private static String getSystemProperty ( final String property ) { try { return System . getProperty ( property ) ; <START_BUG> } catch ( SecurityException ex ) { <END_BUG> System . err . println ( ( ( "Caught<seq2seq4repair_space>a<seq2seq4repair_space>SecurityException<seq2seq4repair_space>reading<seq2seq4repair_space>the<seq2seq4repair_space>system<seq2seq4repair_space>property<seq2seq4repair_space>'" + property ) + "';<seq2seq4repair_space>the<seq2seq4repair_space>SystemUtils<seq2seq4repair_space>property<seq2seq4repair_space>value<seq2seq4repair_space>will<seq2seq4repair_space>default<seq2seq4repair_space>to<seq2seq4repair_space>null." ) ) ; return null ; } } public static File getUserDir ( ) { } public static File getUserHome ( ) { } public static boolean isJavaAwtHeadless ( ) { } public static boolean isJavaVersionAtLeast ( final JavaVersion requiredVersion ) { } static boolean isJavaVersionMatch ( final String version , final String versionPrefix ) { } static boolean isOSMatch ( final String osName , final String osVersion , final String osNamePrefix , final String osVersionPrefix ) { } static boolean isOSNameMatch ( final String osName , final String osNamePrefix ) { } public SystemUtils ( ) { } }

Fix:
} catch ( final SecurityException ex ) {